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<a href="util__device_8cuh.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/******************************************************************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) 2011, Duane Merrill.  All rights reserved.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright (c) 2011-2013, NVIDIA CORPORATION.  All rights reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> *     * Redistributions of source code must retain the above copyright</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *       notice, this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *     * Redistributions in binary form must reproduce the above copyright</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *       notice, this list of conditions and the following disclaimer in the</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *       documentation and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *     * Neither the name of the NVIDIA CORPORATION nor the</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *       names of its contributors may be used to endorse or promote products</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> *       derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND</span></div>
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<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> ******************************************************************************/</span></div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="util__arch_8cuh.html">util_arch.cuh</a>&quot;</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="util__debug_8cuh.html">util_debug.cuh</a>&quot;</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#include &quot;util_namespace.cuh&quot;</span></div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#include &quot;util_macro.cuh&quot;</span></div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;CUB_NS_PREFIX</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">namespace </span>cub {</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;<span class="preprocessor">#ifndef DOXYGEN_SHOULD_SKIP_THIS    // Do not document</span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;__global__ <span class="keywordtype">void</span> EmptyKernel(<span class="keywordtype">void</span>) { }</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="keyword">template</span> &lt;<span class="keywordtype">int</span> ALLOCATIONS&gt;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;__host__ __device__ __forceinline__</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;cudaError_t AliasTemporaries(</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keywordtype">void</span>    *d_temp_storage,                    </div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="keywordtype">size_t</span>  &amp;temp_storage_bytes,                </div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keywordtype">void</span>*   (&amp;allocations)[ALLOCATIONS],        </div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keywordtype">size_t</span>  (&amp;allocation_sizes)[ALLOCATIONS])   </div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;{</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> ALIGN_BYTES   = 256;</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keyword">const</span> <span class="keywordtype">int</span> ALIGN_MASK    = ~(ALIGN_BYTES - 1);</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="comment">// Compute exclusive prefix sum over allocation requests</span></div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="keywordtype">size_t</span> bytes_needed = 0;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ALLOCATIONS; ++i)</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    {</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;        <span class="keywordtype">size_t</span> allocation_bytes = (allocation_sizes[i] + ALIGN_BYTES - 1) &amp; ALIGN_MASK;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;        allocation_sizes[i] = bytes_needed;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        bytes_needed += allocation_bytes;</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    }</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="comment">// Check if the caller is simply requesting the size of the storage allocation</span></div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="keywordflow">if</span> (!d_temp_storage)</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    {</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        temp_storage_bytes = bytes_needed;</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;        <span class="keywordflow">return</span> cudaSuccess;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    }</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <span class="comment">// Check if enough storage provided</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;    <span class="keywordflow">if</span> (temp_storage_bytes &lt; bytes_needed)</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    {</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(cudaErrorMemoryAllocation);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    }</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;    <span class="comment">// Alias</span></div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ALLOCATIONS; ++i)</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    {</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;        allocations[i] = <span class="keyword">static_cast&lt;</span><span class="keywordtype">char</span>*<span class="keyword">&gt;</span>(d_temp_storage) + allocation_sizes[i];</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    }</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <span class="keywordflow">return</span> cudaSuccess;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;}</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="preprocessor">#endif  // DOXYGEN_SHOULD_SKIP_THIS</span></div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div>
<div class="line"><a name="l00117"></a><span class="lineno"><a class="code" href="group___util_module.html#gac3d86a53650d110862fe8a84fce61c2e">  117</a></span>&#160;__host__ __device__ __forceinline__ cudaError_t <a class="code" href="group___util_module.html#gac3d86a53650d110862fe8a84fce61c2e" title="Retrieves the PTX version (major * 100 + minor * 10) ">PtxVersion</a>(<span class="keywordtype">int</span> &amp;ptx_version)</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;{</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;<span class="preprocessor">#ifndef CUB_RUNTIME_ENABLED</span></div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="comment">// CUDA API calls not supported from this device</span></div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="keywordflow">return</span> cudaErrorInvalidConfiguration;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    cudaError_t error = cudaSuccess;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;    <span class="keywordflow">do</span></div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    {</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        cudaFuncAttributes empty_kernel_attrs;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaFuncGetAttributes(&amp;empty_kernel_attrs, EmptyKernel&lt;void&gt;))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        ptx_version = empty_kernel_attrs.ptxVersion * 10;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;    }</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    <span class="keywordflow">while</span> (0);</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    <span class="keywordflow">return</span> error;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;__host__ __device__ __forceinline__</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;<span class="keyword">static</span> cudaError_t SyncStream(cudaStream_t stream)</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;{</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;<span class="preprocessor">#ifndef __CUDA_ARCH__</span></div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;<span class="preprocessor"></span>    <span class="keywordflow">return</span> cudaStreamSynchronize(stream);</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;<span class="preprocessor"></span>    <span class="comment">// Device can&#39;t yet sync on a specific stream</span></div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;    <span class="keywordflow">return</span> cudaDeviceSynchronize();</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="preprocessor"></span>}</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div>
<div class="line"><a name="l00160"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html">  160</a></span>&#160;<span class="keyword">class </span><a class="code" href="classcub_1_1_device.html" title="Properties of a given CUDA device and the corresponding PTX bundle. ">Device</a></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;{</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;<span class="keyword">private</span>:</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    <span class="keyword">typedef</span> void (*EmptyKernelPtr)();</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;    EmptyKernelPtr Empty()</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    {</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;        <span class="keywordflow">return</span> EmptyKernel&lt;void&gt;;</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;    }</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    <span class="comment">// Version information</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#ac9b36b3b0edb207aeee60110fbee6406">  177</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#ac9b36b3b0edb207aeee60110fbee6406" title="SM version of target device (SM version X.YZ in XYZ integer form) ">sm_version</a>;             </div>
<div class="line"><a name="l00178"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a416909debdeaa9116d7087ed55ed870f">  178</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a416909debdeaa9116d7087ed55ed870f" title="Bundled PTX version for target device (PTX version X.YZ in XYZ integer form) ">ptx_version</a>;            </div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    <span class="comment">// Target device properties</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a68885a90ea0badcffc2a3511b0b4fd5c">  181</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a68885a90ea0badcffc2a3511b0b4fd5c" title="Number of SMs. ">sm_count</a>;               </div>
<div class="line"><a name="l00182"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049">  182</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a>;           </div>
<div class="line"><a name="l00183"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a909d34dd31bdb6f754a603e8eb2b10ab">  183</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a909d34dd31bdb6f754a603e8eb2b10ab" title="Number of bytes per SM bank. ">smem_bank_bytes</a>;        </div>
<div class="line"><a name="l00184"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a2e835add85abdf0eb640c551abec2a0b">  184</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a2e835add85abdf0eb640c551abec2a0b" title="Number of smem banks. ">smem_banks</a>;             </div>
<div class="line"><a name="l00185"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a838c9a2e207c38ef24e79a40bccdd1ac">  185</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a838c9a2e207c38ef24e79a40bccdd1ac" title="Smem bytes per SM. ">smem_bytes</a>;             </div>
<div class="line"><a name="l00186"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#aca17efd166d916008f0fc378adc00b1f">  186</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#aca17efd166d916008f0fc378adc00b1f" title="Smem segment size. ">smem_alloc_unit</a>;        </div>
<div class="line"><a name="l00187"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a721a479d183aaa1846c69de998f84ffc">  187</a></span>&#160;    <span class="keywordtype">bool</span>    <a class="code" href="classcub_1_1_device.html#a721a479d183aaa1846c69de998f84ffc" title="Whether registers are allocated by threadblock (or by warp) ">regs_by_block</a>;          </div>
<div class="line"><a name="l00188"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#aa432ab8fdb1d1117b29811422c83a187">  188</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#aa432ab8fdb1d1117b29811422c83a187" title="Granularity of register allocation within the SM. ">reg_alloc_unit</a>;         </div>
<div class="line"><a name="l00189"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#ac5f8afb6f319b0dbd689f3f1188fc20b">  189</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#ac5f8afb6f319b0dbd689f3f1188fc20b" title="Granularity of warp allocation within the SM. ">warp_alloc_unit</a>;        </div>
<div class="line"><a name="l00190"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a963c497e442ac283b2655faa578614d3">  190</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a963c497e442ac283b2655faa578614d3" title="Maximum number of threads per SM. ">max_sm_threads</a>;         </div>
<div class="line"><a name="l00191"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf">  191</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf" title="Maximum number of threadblocks per SM. ">max_sm_blocks</a>;          </div>
<div class="line"><a name="l00192"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#ab55f58e3252d369ee50d34b190df2277">  192</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#ab55f58e3252d369ee50d34b190df2277" title="Maximum number of threads per threadblock. ">max_block_threads</a>;      </div>
<div class="line"><a name="l00193"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#af321be8fe9aecd0942d04739f7520c61">  193</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#af321be8fe9aecd0942d04739f7520c61" title="Maximum number of registers per SM. ">max_sm_registers</a>;       </div>
<div class="line"><a name="l00194"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a5ee84e74af9939896bb81b48d4843d17">  194</a></span>&#160;    <span class="keywordtype">int</span>     <a class="code" href="classcub_1_1_device.html#a5ee84e74af9939896bb81b48d4843d17" title="Maximum number of warps per SM. ">max_sm_warps</a>;           </div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> ArchProps&gt;</div>
<div class="line"><a name="l00200"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a3c986a6aa2d3b69fe8a7ab14c85a6477">  200</a></span>&#160;    __host__ __device__ __forceinline__ <span class="keywordtype">void</span> <a class="code" href="classcub_1_1_device.html#a3c986a6aa2d3b69fe8a7ab14c85a6477">Callback</a>()</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    {</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;        <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a>        = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063ac5a2eb5b9e3b50dd43ad67c1ff020d9c" title="Log of the number of threads per warp. ">ArchProps::WARP_THREADS</a>;</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        <a class="code" href="classcub_1_1_device.html#a909d34dd31bdb6f754a603e8eb2b10ab" title="Number of bytes per SM bank. ">smem_bank_bytes</a>     = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063ab56aa4deb8408a51e7cc139c2c1e14f5" title="The number of smem banks. ">ArchProps::SMEM_BANK_BYTES</a>;</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;        <a class="code" href="classcub_1_1_device.html#a2e835add85abdf0eb640c551abec2a0b" title="Number of smem banks. ">smem_banks</a>          = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a55ab5a77ae95f67255bbec10cd3993e1" title="Log of the number of smem banks. ">ArchProps::SMEM_BANKS</a>;</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;        <a class="code" href="classcub_1_1_device.html#a838c9a2e207c38ef24e79a40bccdd1ac" title="Smem bytes per SM. ">smem_bytes</a>          = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a993d6ee811a054da1a8579132c6301a1" title="Size of smem bank words. ">ArchProps::SMEM_BYTES</a>;</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;        <a class="code" href="classcub_1_1_device.html#aca17efd166d916008f0fc378adc00b1f" title="Smem segment size. ">smem_alloc_unit</a>     = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063af554a252a393bce18200236640959bab" title="Maximum SM shared memory. ">ArchProps::SMEM_ALLOC_UNIT</a>;</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        <a class="code" href="classcub_1_1_device.html#a721a479d183aaa1846c69de998f84ffc" title="Whether registers are allocated by threadblock (or by warp) ">regs_by_block</a>       = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063addc3e62803e3ed6d8ec351faa7a2c45d" title="Smem allocation size in bytes. ">ArchProps::REGS_BY_BLOCK</a>;</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;        <a class="code" href="classcub_1_1_device.html#aa432ab8fdb1d1117b29811422c83a187" title="Granularity of register allocation within the SM. ">reg_alloc_unit</a>      = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a5f6934930aa379cd70b7c8e19bcff4bc" title="Whether or not the architecture allocates registers by block (or by warp) ">ArchProps::REG_ALLOC_UNIT</a>;</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;        <a class="code" href="classcub_1_1_device.html#ac5f8afb6f319b0dbd689f3f1188fc20b" title="Granularity of warp allocation within the SM. ">warp_alloc_unit</a>     = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a25bc7bb8dac71df0b7962776e0ed9cde" title="Number of registers allocated at a time per block (or by warp) ">ArchProps::WARP_ALLOC_UNIT</a>;</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;        <a class="code" href="classcub_1_1_device.html#a963c497e442ac283b2655faa578614d3" title="Maximum number of threads per SM. ">max_sm_threads</a>      = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a3aa3c3db5dc28ef11961f6867fee7101" title="Granularity of warps for which registers are allocated. ">ArchProps::MAX_SM_THREADS</a>;</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;        <a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf" title="Maximum number of threadblocks per SM. ">max_sm_blocks</a>       = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063abdc229ee36991bb6055f3bd42fc59387" title="Maximum number of threads per SM. ">ArchProps::MAX_SM_THREADBLOCKS</a>;</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;        <a class="code" href="classcub_1_1_device.html#ab55f58e3252d369ee50d34b190df2277" title="Maximum number of threads per threadblock. ">max_block_threads</a>   = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a9079f42fbfb80e59ef7affc574bf6001" title="Maximum number of thread blocks per SM. ">ArchProps::MAX_BLOCK_THREADS</a>;</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;        <a class="code" href="classcub_1_1_device.html#af321be8fe9aecd0942d04739f7520c61" title="Maximum number of registers per SM. ">max_sm_registers</a>    = <a class="code" href="structcub_1_1_arch_props.html#a378def3dee75e77eb135efcf6f0ca063a90062d88d6a9abcfdfd4c29111a5ac3e" title="Maximum number of thread per thread block. ">ArchProps::MAX_SM_REGISTERS</a>;</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;        <a class="code" href="classcub_1_1_device.html#a5ee84e74af9939896bb81b48d4843d17" title="Maximum number of warps per SM. ">max_sm_warps</a>        = <a class="code" href="classcub_1_1_device.html#a963c497e442ac283b2655faa578614d3" title="Maximum number of threads per SM. ">max_sm_threads</a> / <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a>;</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    }</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;<span class="keyword">public</span>:</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00224"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a4c1aecec381d2dce80120362feb2d0ca">  224</a></span>&#160;    cudaError_t <a class="code" href="classcub_1_1_device.html#a4c1aecec381d2dce80120362feb2d0ca">Init</a>(<span class="keywordtype">int</span> device_ordinal)</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    {</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;<span class="preprocessor">    #ifndef CUB_RUNTIME_ENABLED</span></div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;        <span class="comment">// CUDA API calls not supported from this device</span></div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(cudaErrorInvalidConfiguration);</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;<span class="preprocessor">    #else</span></div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;        cudaError_t error = cudaSuccess;</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;        <span class="keywordflow">do</span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;        {</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;            <span class="comment">// Fill in SM version</span></div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;            <span class="keywordtype">int</span> major, minor;</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceGetAttribute(&amp;major, cudaDevAttrComputeCapabilityMajor, device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceGetAttribute(&amp;minor, cudaDevAttrComputeCapabilityMinor, device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            <a class="code" href="classcub_1_1_device.html#ac9b36b3b0edb207aeee60110fbee6406" title="SM version of target device (SM version X.YZ in XYZ integer form) ">sm_version</a> = major * 100 + minor * 10;</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;            <span class="comment">// Fill in static SM properties</span></div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;            <span class="comment">// Initialize our device properties via callback from static device properties</span></div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;            <a class="code" href="structcub_1_1_arch_props.html" title="Structure for statically reporting CUDA device properties, parameterized by SM architecture. ">ArchProps&lt;100&gt;::Callback</a>(*<span class="keyword">this</span>, <a class="code" href="classcub_1_1_device.html#ac9b36b3b0edb207aeee60110fbee6406" title="SM version of target device (SM version X.YZ in XYZ integer form) ">sm_version</a>);</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;            <span class="comment">// Fill in SM count</span></div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaDeviceGetAttribute (&amp;<a class="code" href="classcub_1_1_device.html#a68885a90ea0badcffc2a3511b0b4fd5c" title="Number of SMs. ">sm_count</a>, cudaDevAttrMultiProcessorCount, device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;            <span class="comment">// Fill in PTX version</span></div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;<span class="preprocessor">        #if CUB_PTX_ARCH &gt; 0</span></div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;<span class="preprocessor"></span>            <a class="code" href="classcub_1_1_device.html#a416909debdeaa9116d7087ed55ed870f" title="Bundled PTX version for target device (PTX version X.YZ in XYZ integer form) ">ptx_version</a> = <a class="code" href="group___util_module.html#ga76769ce380739b38e0bd00f57e0dbe4f" title="CUB_PTX_ARCH reflects the PTX version targeted by the active compiler pass (or zero during the host p...">CUB_PTX_ARCH</a>;</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;<span class="preprocessor">        #else</span></div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;<span class="preprocessor"></span>            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = <a class="code" href="group___util_module.html#gac3d86a53650d110862fe8a84fce61c2e" title="Retrieves the PTX version (major * 100 + minor * 10) ">PtxVersion</a>(<a class="code" href="classcub_1_1_device.html#a416909debdeaa9116d7087ed55ed870f" title="Bundled PTX version for target device (PTX version X.YZ in XYZ integer form) ">ptx_version</a>))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;<span class="preprocessor">        #endif</span></div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;        }</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;        <span class="keywordflow">while</span> (0);</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;        <span class="keywordflow">return</span> error;</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;<span class="preprocessor">    #endif</span></div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;<span class="preprocessor"></span>    }</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00269"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#af5217a10a5c9d26ce226e257665a45ce">  269</a></span>&#160;    cudaError_t <a class="code" href="classcub_1_1_device.html#af5217a10a5c9d26ce226e257665a45ce">Init</a>()</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;    {</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;<span class="preprocessor">    #ifndef CUB_RUNTIME_ENABLED</span></div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;        <span class="comment">// CUDA API calls not supported from this device</span></div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(cudaErrorInvalidConfiguration);</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;<span class="preprocessor">    #else</span></div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;        cudaError_t error = cudaSuccess;</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        <span class="keywordflow">do</span></div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;        {</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;            <span class="keywordtype">int</span> device_ordinal;</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;            <span class="keywordflow">if</span> ((error = <a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(cudaGetDevice(&amp;device_ordinal)))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;            <span class="keywordflow">if</span> ((error = <a class="code" href="classcub_1_1_device.html#af5217a10a5c9d26ce226e257665a45ce">Init</a>(device_ordinal))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;        }</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;        <span class="keywordflow">while</span> (0);</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;        <span class="keywordflow">return</span> error;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;<span class="preprocessor">    #endif</span></div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="preprocessor"></span>    }</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    <span class="keyword">template</span> &lt;<span class="keyword">typename</span> KernelPtr&gt;</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;    __host__ __device__ __forceinline__</div>
<div class="line"><a name="l00297"></a><span class="lineno"><a class="code" href="classcub_1_1_device.html#a618bbf36a5737a9b1533ff65834e88e8">  297</a></span>&#160;    cudaError_t <a class="code" href="classcub_1_1_device.html#a618bbf36a5737a9b1533ff65834e88e8">MaxSmOccupancy</a>(</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;        <span class="keywordtype">int</span>                 &amp;max_sm_occupancy,          </div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;        KernelPtr           kernel_ptr,                 </div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;        <span class="keywordtype">int</span>                 block_threads)              </div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    {</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;<span class="preprocessor">    #ifndef CUB_RUNTIME_ENABLED</span></div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;        <span class="comment">// CUDA API calls not supported from this device</span></div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;        <span class="keywordflow">return</span> <a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(cudaErrorInvalidConfiguration);</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;<span class="preprocessor">    #else</span></div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;        cudaError_t error = cudaSuccess;</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;        <span class="keywordflow">do</span></div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;        {</div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;            <span class="comment">// Get kernel attributes</span></div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;            cudaFuncAttributes kernel_attrs;</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="group___util_module.html#ga84c3a4c178bf6593e0fad2b763606236" title="Debug macro. ">CubDebug</a>(error = cudaFuncGetAttributes(&amp;kernel_attrs, kernel_ptr))) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;            <span class="comment">// Number of warps per threadblock</span></div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;            <span class="keywordtype">int</span> block_warps = (block_threads +  <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a> - 1) / <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a>;</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;            <span class="comment">// Max warp occupancy</span></div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;            <span class="keywordtype">int</span> max_warp_occupancy = (block_warps &gt; 0) ?</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;                <a class="code" href="classcub_1_1_device.html#a5ee84e74af9939896bb81b48d4843d17" title="Maximum number of warps per SM. ">max_sm_warps</a> / block_warps :</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;                <a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf" title="Maximum number of threadblocks per SM. ">max_sm_blocks</a>;</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;            <span class="comment">// Maximum register occupancy</span></div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;            <span class="keywordtype">int</span> max_reg_occupancy;</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;            <span class="keywordflow">if</span> ((block_threads == 0) || (kernel_attrs.numRegs == 0))</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;            {</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;                <span class="comment">// Prevent divide-by-zero</span></div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;                max_reg_occupancy = <a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf" title="Maximum number of threadblocks per SM. ">max_sm_blocks</a>;</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;            }</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;            <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classcub_1_1_device.html#a721a479d183aaa1846c69de998f84ffc" title="Whether registers are allocated by threadblock (or by warp) ">regs_by_block</a>)</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;            {</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;                <span class="comment">// Allocates registers by threadblock</span></div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;                <span class="keywordtype">int</span> block_regs = CUB_ROUND_UP_NEAREST(kernel_attrs.numRegs * <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a> * block_warps, <a class="code" href="classcub_1_1_device.html#aa432ab8fdb1d1117b29811422c83a187" title="Granularity of register allocation within the SM. ">reg_alloc_unit</a>);</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;                max_reg_occupancy = <a class="code" href="classcub_1_1_device.html#af321be8fe9aecd0942d04739f7520c61" title="Maximum number of registers per SM. ">max_sm_registers</a> / block_regs;</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;            }</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;            <span class="keywordflow">else</span></div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;            {</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;                <span class="comment">// Allocates registers by warp</span></div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;                <span class="keywordtype">int</span> sm_sides                = <a class="code" href="classcub_1_1_device.html#ac5f8afb6f319b0dbd689f3f1188fc20b" title="Granularity of warp allocation within the SM. ">warp_alloc_unit</a>;</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;                <span class="keywordtype">int</span> sm_registers_per_side   = <a class="code" href="classcub_1_1_device.html#af321be8fe9aecd0942d04739f7520c61" title="Maximum number of registers per SM. ">max_sm_registers</a> / sm_sides;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;                <span class="keywordtype">int</span> regs_per_warp           = CUB_ROUND_UP_NEAREST(kernel_attrs.numRegs * <a class="code" href="classcub_1_1_device.html#a4498c242e597f67a4a752426ae262049" title="Number of threads per warp. ">warp_threads</a>, <a class="code" href="classcub_1_1_device.html#aa432ab8fdb1d1117b29811422c83a187" title="Granularity of register allocation within the SM. ">reg_alloc_unit</a>);</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;                <span class="keywordtype">int</span> warps_per_side          = sm_registers_per_side / regs_per_warp;</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;                <span class="keywordtype">int</span> warps                   = warps_per_side * sm_sides;</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;                max_reg_occupancy           = warps / block_warps;</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;            }</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;            <span class="comment">// Shared memory per threadblock</span></div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;            <span class="keywordtype">int</span> block_allocated_smem = CUB_ROUND_UP_NEAREST(</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;                kernel_attrs.sharedSizeBytes,</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;                <a class="code" href="classcub_1_1_device.html#aca17efd166d916008f0fc378adc00b1f" title="Smem segment size. ">smem_alloc_unit</a>);</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;            <span class="comment">// Max shared memory occupancy</span></div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;            <span class="keywordtype">int</span> max_smem_occupancy = (block_allocated_smem &gt; 0) ?</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;                (<a class="code" href="classcub_1_1_device.html#a838c9a2e207c38ef24e79a40bccdd1ac" title="Smem bytes per SM. ">smem_bytes</a> / block_allocated_smem) :</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;                <a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf" title="Maximum number of threadblocks per SM. ">max_sm_blocks</a>;</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;</div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;            <span class="comment">// Max occupancy</span></div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;            max_sm_occupancy = CUB_MIN(</div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;                CUB_MIN(<a class="code" href="classcub_1_1_device.html#ac614bed852b56bf8c616803aa8601caf" title="Maximum number of threadblocks per SM. ">max_sm_blocks</a>, max_warp_occupancy),</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;                CUB_MIN(max_smem_occupancy, max_reg_occupancy));</div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;</div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;<span class="comment">//            printf(&quot;max_smem_occupancy(%d), max_warp_occupancy(%d), max_reg_occupancy(%d)&quot;, max_smem_occupancy, max_warp_occupancy, max_reg_occupancy);</span></div>
<div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;        } <span class="keywordflow">while</span> (0);</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;        <span class="keywordflow">return</span> error;</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;<span class="preprocessor">    #endif</span></div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;<span class="preprocessor"></span>    }</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;};</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;       <span class="comment">// end group UtilModule</span></div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;}               <span class="comment">// CUB namespace</span></div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;CUB_NS_POSTFIX  <span class="comment">// Optional outer namespace(s)</span></div>
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